Improvement in machines for making harness for looms



UNITED STATES PATENT GEEICE.

AND JOHN LORD,

OF SAME PLACE.

IMPROVEMENT IN MACHINES FOR MAKINGHARNESS FOR LO-OMS.

Specification forming part of Letters Patent No. 80,774, dated August 4, 1868.

To all whom it may concern:

`Be it known that I, J osEPH SLADDIN, of Lawrence, in the county ot' Essex and State of Massachusetts, `have invented a new and useful Improvement in Machinery for Making Loom-Harness; and I do hereby declare that the followingis a full, clear, and exact description thereof, which will enable thoseV skilled in the art to make and use the same, reference being had to the accompanying drawings forming part of this specification.

My invention relates to certain improvements in machinery for weaving loom-harness, whereby, by an automaticallybperating machine, I am enabled to form the heddleeyes and at the same time secure the yarn to the rig-bands in a firm and substantial manner; and it consists in the arrangement of the different parts of the machine for accomplishing the same, as will be more particularly described by reference to the drawings accompanying this specitication, in which- Figure l represents a plan view of my irnproved machine; Fig. 2, a side elevation of the same; Fig. 3, a section on the line as m of Fig. l, and' Fig. 4 represents a cross-section on the line y y, Fig. l. Fig. 5 represents view of the end of the needle a; Fig. 6, a perspective view of the twisting-fingers e; Fig. 7, a view of the push-fingers f; Fig. 8, a view of the twister d; of the rig-band, showing the manner ot' securing the heddles to it, and Fig. 10 a view of a portion of the heddles.

Similar letters represent corresponding parts in all the figures.

A represents the frame of the machine, and B the driving-shaft, which receives motion from any competent prime mover, and which communicates motion to all the other moving parts.y c is a stationary needle rigidly secured to an extension, A', ot' the frame ofthe machine, and is provided on its upper side with a wide and deep groove nearly its whole length, and at its operatin g end with two eyes, one on each side. al represents a pair of :lingers projecting downward, so as to pass one on each side of the needle.

They are suspended from the two swinging arms c Fig. 9, a view ot' a portion c3, connected to the oscillating shafts a4 a5, respectively, which receive motion from cams a6 a7 on the shaft G, through the Inedium of arms a, a9 on the said shafts c4 a5. A right-angled vertical extension ot the arm a2 carries at its upper end guide-eyes for conducting the yarn from the bobbins to the needle.

b1 b1 represent a pair of lingers having rightangled extensions at their lower extremities, serving the purpose of wipers, which are acted upon by the pins b2 b2 on the hooker-arms c c, to force the said fingers up to the needle, which is provided with grooves or recesses on each 'side to receive them. The said fingers are actuated in the opposite direction by springs b3 b3 acting upon arms b4 b4 secured to the axial pivots b5 b5, to which the said lingers are also secured, and which have a bearing in a vertical support suspended from one of the cross-ties of the frame. c c represent a pair of hooker-levers, which terminate at their upper ends, each in a pair of hooks, c1 c1. The said hooker-arms are supported at their lower ends on the levers c3 c3, which are pivoted to the frame at cL c4, the opposite ends ofsaid levers being connected to and actuated by con nesting-rods c5 c5. The rods at their upper ends are connected to the levers c6 c, which are pivoted to the frame at c7 cl, and carry friction-bowls, which are actuated by cams ca o8 on the shafts 09 c. Thesejshafts are actuated from the shaft D through the intermediation of bevel-wheels. The said shaft'D is actuated by the driving-shaft B through vthe wheels B B. The said hooker-arms have another movement communicated to them by cranks c10 c1, and connecting-rods ou on the shafts cf. d represents a twister on the end of shaft d1, arranged in the plane of t-he nee-v dle and at rightangles i. to the same, and has an oscillating motion communicated to it through the mediation ofthe piniond2, wheel d3, pinion d4, rack d5, and cam d6 on the shaft C. The return motion is effected by the action of the spiral spring al on the rack-bar d5 afterv the cam-tappet d has passed out of action with the friction-bowl on the said rack-bar. d8 is a friction-wheel, which serves to bear the rack-bar up to the proper connection with the iinion d4. E re iresents a air of fingers on l l a the top of a vertical shaft, el, which is made to oscillate through a quarter of a revolution by means of the crank c2 and slide e3, which are actuated by cam cion the shaftl),to throw the said lingers around, so as to stand in line with the axis of the twister d.V The return movement is given by the spring e5. f represents a pair of sliding fingers arranged in line with the needle, and connected to the slide f1, whichis moved forward by a cam on the shaft D, which works against the vibrating lever f2, which is connected to the slide f1 at its upper end. The return movement of thesaid slide and fingers is effected by the recoil of the spiral springf.

g g represent hooks to receive the thread from the carrying-hooks c1 ci. They receive motion from cams on the lapper-cylinders h h through the action of the levers g1 g1 and oscllatin g shafts g2 g2. h h are cylinders through which the rig-bands pass, and which are carried in brackets h1 h1. They are actuated by the wheels h2 h2, from the shafts c", through intermediate wheels h3. These lapper-cylinders carry at one end the lapper-bobbins and at the other a guide-eye, through which the yarn is carried from the lapper-bobbins. (ii are barbed knitting-needles ofthe ordinary construction, secured to the reciprocating cross-head1l1,which is actuated in one direction by a cam on the shaft C, through the arms i? i3 on the rockshaft '114, and 4in, the` opposite direction by. a spring, i5. jv j areV horizontal guide-supports forthe needles, through an opening in which,

near Vtheirinner ends, the said needles work. The pai-tj1 serves as a knocker over, to knock off the stitches'from the said needles. j2j2 are springfpressers for lpressing the barbs down into the grooves in the needle when it is required toslip the loop off the said needles., j3

v j?. are presser-rollers for holding the rig-bands npagainstthe ends of the needle-supports. They are/.secured tothe bracketsh.l l1,l by adjustable connections. la lo are spring-arms secured to the extension A1 atkz. k2.. Their inner ends extend inward to about the weavin gline, or the line of movement of the hookers c1 el, and their office is to receive upon their upper surface the web as it is woven and passes out of lthe, machine. Their inner ends are, at the proper time, raised by the vertically-sliding rods 7a3 7c3, actuated bycams on the shaft C, to prevent the web being obstructed by catching upon any of the parts of the machine as it moves along. l is a presser-pad actuated by the shaft a, and is for the purpose of holding the web down against any tendencyvofthe fingers al to raise it up. m is a horizontally.

sliding carriage, from which project two vertical pins, to which the rig-bands are secured. This carriage is caused to slide back and forth on the guide-rods ml m1 by means of the screw `m2, shown in dotted lines in Fig. l, gear-wheels m3, also shown in dottedl lines, and shaftm, which receives its motion.

from a train of wheels-on one side of the ma chine connecting with the main wheel on the driving-shaft, as clearly shown in the same figure.

The operation of my improved machine is as follows: The carriage m being moved up to a positioninear the frame A, the cords which form the .rig-bands are drawn olf the bobbins 'n n over the guide-pulleys n. n through the lapper-cylinders h, and fastened to the vertical pins in the carriage fm., the weights o o, suspended from the bobbins n, keeping the said cords under the proper tension. The yarn for forming the heddles is drawn from the yarn-bobbins p p through the tensionrings p1 and guide-eyes p2 p2 and 19319 over the pulleys p4, thence through the groove in the upper face of the needles to the eyes, one-of which is passed through each eye; thence to the rig-band, where they are fastened. The yarn from the lapping-bobbins q q is then drawn through the lapper-cylinders and the guide-eyes, and fastened to the same place. The twister d now seizes hold of the yarn on one side of the needle a., and carries it downward around the fingers e, whichfhave been previously turned so as to pointE in the direction of the said twister. The fingers e then turn back so as to point toward the -needle a., when the push-lingers f move forward and push the loop off from the ngers onto the needle. The fingers a1 now move down onto the loopand hold it while the fingers b1 rise-up between the yarn` and the needle, and, moving outwardly, carry loops a suffi-y cient distance for the hookers c1 01 to take them from the n gers and carry them to the spoon-shaped fingers g, which rise up and take the said loops from the hookers, and hold them, so that the barbed needles can -take hold of them. At the same time the yarn from the lapper-cylinders laps .around the barbed needles and is Wound around the rigbands, when the hooks g drop away from the-1 yarn, and the needles are moved back and closed `against the pressers jz, in the usual manner of knitting.

The operation is then repeated, and as each operation, as thus described, is performed, the carriage m is moved outwardly a distance vcorresponding with the space due to one heddie-yarn, or sufiiciently to take up the slack and keep a proper tension on the yarn; or, a take-up apparatus similar to that employed in ordinary looms, may be used.

I claim as new, and desire to secure by Letters Patentl. The combination, with the twister d, of the means, substantially as described, for operating the same, as and for the purpose specified.

g with the hooker-fingers c1 0 1 and the nee- 3. The combination of the lapper-cylinders,

2. The combination of the spoon-hookers g t having guide-eyes, as described, with the the rig-bands, substantially as and for the spoon-shaped hook g g and needles M, subpurpose described.

stantially as and for the purpose described. 6. The combination, with the knitting de- 4. The combination, with the needle guide vice herein described, of the lifting guideand supportjj, of the presser-Wheels jaj, when bars lo k, as and for the purpose described.

arranged and operating as and for the purpose specified. JOSEPH vSLALDDIN.

5. The combination, with the device for Witnesses:

forming the loops, substantially as described, GEO. LAMB,

of the devices for knitting the heddles onto H. P. DAMON. 

